Georges f



(No Model.) I

G. F. JACOT.

I WATGHESGAPEMENT. No. 272,558. Patented Peb.20,1883.

INVE OR m I BY ATTORNB UNITED STATES PATENT OFFICE.

GEORGES F. JAOOT, OF LOOLE, SWITZERLAND.

WATCH-ESCAPEMENT.

SPECIFICATION forming part of Letters Patent No. 272,553, dated February 20, 1883.

Application filed October 13, 1882. (No model.)

To all whom it may concern Be it known that I, GEORGES FAVRE JACOT, of Locle, in the canton ofNeufchatel, Republic of Switzerland, have invented certain new and useful Improvements in Watch-Escapements,

of which the following is a specification.

In watch-movements with full plates. it is difficult to connect the different parts of the movement which are arranged between the main plates of the same, and it requires firstclass workmen to put the movements together, and to repair the same, especially those parts which form the escapement.

The object of this invention is to facilitate the assembling of the parts of the watchmovements described, and to furnish at the same time a better quality of movements.

The invention consists in arranging,in connection with the top plate of the movement, an auxiliary bridge, which supports the lower ends of the arbors of the oscillating fork, escapement-wheel, and second-wheel, independently of the base-plate, the bridge being set into a recess of the base-plate, so that the lower bearings of the different arbors, as well as the diiierent wheels and pinions themselves, are supported in the same relative positions as heretofore.

In the accompanying drawings, Figaro 1 represents a top view of a watch-movement with my improved escapcinent. Fig. 2 is a bottom view of the top plate with my improved escapement detached from the movement, and Fig. 3 is an end view of the movement as seen in the direction of the arrow, Fig. 1, and partlyin section through the baseplate.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the base-plate and B the top plate of a watchmovement with my improved escapement.

To the under side of the top plate B is secured an auxiliary bridge, 0, which extends in the direction of an imaginary line drawn through the arbors b b b of the fork d, escapement-wheel e, and second-wheelfof the movement sidewise of the small bridge D, which supports the lower end of the arbor of the balance-wheel E. ThebridgeO is attached by a thicker portion at one end to the top plate, B, and let into a recess, a, of the baseplate A in such a manner that the bearings of the different arbors,as well as the wheels and pinions on the same, are arranged exactly at the same relative positions to the base and top plates as heretofore in watch-movements of this class, so that it is not necessary to make anyclrange in the length of the different arbors.

The advantage of the auxiliary bridge O is that the t'lifierent parts of the escapement may be assembled and placed in position between the top plate B and bridge 0 independently of any connection with the base-plate, the top plate peing then placed directly into position on the base-plate without necessitating the difiicult and time-consuming fitting of the arbors into the hearings of the base-plate, as heretofore. Oonequently the putting together of the movement, as well as therepairing' of the same, is greatly facilitated, owing to the fact that all the parts which constitute the es capement are removed with the top plate from the base-plate of the movement, and can be readily inspected, repaired, and put together again. Spec ally skilled workmen are therefore not required to put these movements together, and the repairing of watches of that class is also facilitated. My improved escapement is also adapted for the same reason for three-quarter-plate movements.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 'lhe combination, in a watch-escapement, of a top plate having an auxiliary bridge attached to its under side, said bridge supporting the arbors of the fork, escapement-whvel, and second-wheel, and a base-plate having a recess for the auxiliary bridge, so that all the parts of the escapement are supported in their proper relative positions to the top and base plates, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

GEORGES FAVRE JAOOT.

Witnesses:

WILLIAMS FAVRE GLUGUMIN, JEAN UHALLANDE- 

